Home / 30,139.04-45,203.40-7,952.65

Finding the Fourth Proportional to 30,139.04, 45,203.40 and 7,952.65

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Solution

The fourth proportional to 30,139.04, 45,203.40 and 7,952.65 is: 11,927.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,139.04 : 45,203.40 = 7,952.65 : x
  2. Step 2: Convert to fraction form
    30,139.04/45,203.40 = 7,952.65/x
  3. Step 3: Cross multiply
    30,139.04x = 45,203.40 × 7,952.65
  4. Step 4: Simplify right side
    30,139.04x = 359,486,819.01
  5. Step 5: Solve for x
    x = 359,486,819.01/30,139.04
  6. Step 6: Final answer
    x = 11,927.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.